Anthony DiNozzo Senior is a well mannered charismatic con-man. "Senior" as his son calls him, is known for being charming with women. He's had several ex-wives, assumedly all were wealthy women who were of similar personalities. For several years he successfully hid the fact he was broke, from his son and the rest of the world. If ever caught in a situation where the truth of his finical status would be exposed, he managed to charm his way out of it. It's probable the reason he seduced these women to marry was to maintain his high profile life-style. But he did so with no real ill-will, and each divorce was presumably amicable.
Anthony DiNozzo Senior has a good sense of humor, and a warm personality. He is quick to make friends with about anyone he runs into, and has many powerful friends in high-places who think of him warmly. He is skilled at reading body language, and uses this to get close to others. He's slow to get angry, and takes care of his appearance, a trait he shares with his son. But, he was absent most of Tony Junior's life, something he was willing to work hard to correct. He is unreliable and quick to change his mind. Despite his high class lifestyle, he doesn't appear to look-down on others of lower status. He didn't hesitate to take a bus when needed, and chatted with a stranger in line.
For a more detailed list, see Anthony DiNozzo Senior/List of Appearances.